Professor Thomas Muir grew up in the southwest of Scotland and obtained his PhD in Chemistry from the University of Edinburgh in 1993. In 1996 he joined Rockefeller University in New York City as the Richard E. Salomon Family Professor and Director of the Pels Center of Chemistry. Thomas joined Princeton in 2011 as the Van Zandt Williams Jr. Class of ’65 Professor of Chemistry and in 2015 he was appointed Chair of the Department of Chemistry. He is best known for developing methods for the preparation of proteins containing unnatural amino acids, post-translational modifications and spectroscopic probes. In 2007, he became a Fellow of the American Association for the Advancement of Science.